It could be a yeast infection or bacterial vaginosis or BV. You could try and over the counter vaginal yeast treatment. Get like a 3 day one. If you feel fine after that that is good. Better hygiene helps but not always. This can come from multiple sex partners or just sex or if you use a douche stop using them because they change the vaginal normal bacteria which then changes the vaginal pH or acid /base level. Other than the actual antibacterial or anti-fungal treatments you shouldn't put anything in to clean the vagina.
If it doesn't work then see a doctor to get tested for BV. You could have a resistant type of yeast or a bacterial infection. So then they will do some testing and can give you an antibiotic if you have that.
Let me know how it goes. I can try to advise you along the way.
I'm not using anything but ate yogurt and banana but itch is there a little no more whitish substance though.but lot of vaginal fuild